entity framework - EF Code First One-To-One with Join Table -

i trying configure model existing database, , running problem. previous developer modeled one-to-one relationship using join table. if have following classes , database structure below, how can map using code first?

public class title {  public property property { get; set; } }  public class property {  public title titleinsurance { get; set; } }   tbtitle -titleid = pk  tbpropertytotitle -titleid - fk tbtitle.titleid -propertid - fk tbproperty.propertyid  tbproperty -propertyid = pk 

code in vb.net here, should easy translate. mark primary keys key data attribute. entity framework automatically properties named class + id, i.e. tbtitleid assign primary keys, since isn't applicable here, need key attribute.

overridable properties denote navigation properties. in c#, should equivalent virtual properties. when navigation property accessed, entity framework automatically valid foreign key relations, , populate appropriate data.

for one-to-one relationship, entity framework expects 2 tables share same primary key, shown titleid here.

public class tbtitle     <key()>     public property titleid integer     ...     public overridable property property tbproperty end class   public class tbproperty     <key()>     public property titleid integer     ...     public overridable property title tbtitle end class